Spotlight Article:

Choosing an IR Camera

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June 22, 2015

Download BEopt and EnergyPlus or DOE-2. Once they are installed, start BEopt and select either New Construction or Retrofit mode.
Geometry screen. Click and drag to draw your building floor plan.
Options screen. Select building ... [continue reading]

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June 20, 2015

The story of BEopt starts in October 2000, when a seminal two-day workshop was held at the National Renewable Energy Laboratory (NREL) to explore the then-novel concept of zero net energy (ZNE) buildings. Representatives from the ... [continue reading]

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December 30, 2013

Imagine leaving your manometer in the basement while you are doing a combustion appliance zone (CAZ) test and then walking around the house, turning on fans, adjusting doors, energizing the air handler, all while you ... [continue reading]

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June 29, 2012

According to DOE’s Building America program data, typical residential ductwork efficiency is about 67%. That means that if you install a 90% efficient furnace, your system efficiency would be just over 60%. Another way to look ... [continue reading]